Improved steam-boiler



UNITED STATES PATENT OEEIeE.

W'ILLIAM BUDD AND J. L. HUSBAND, OF PHILADELPHIA, PA.

IMPROVED STEAM-BOILER.

Specification forming part of Letters Patent No. 43,476, dated July 12, 1864.

To all whom it may concern:

Be it known that we, WILLIAM BUDD and feet long, three feet wide, and three and onehalf feet high to the apex of the semicircular J. L. HUSBAND, ofthe cit-y of Philadelphia, in top, the iues of such proportioned boiler the State of Pennsylvania, haveinvented anew i should be, for instance, three inches high and and improved mode of constructing steaml twentvfour inches Wide, and have a draft boilers adapted to oils (coal oil, for instance) as a fuel, so as to control the tire and augi ment the heat thereof', and burn most of the 3 smoke; and We do hereby declare that the following is a full, clear, and exact description area of seventy-two square inches.

of the construction and operation ofthe same, reference being had to the annexed drawings, making part of this specification, in which- 1 Figure l is a longitudinal View, Fig. 2 a i front View, and Fig. 3 a through sectional view as per line A B in Fig. 1.

r1`he letter A in said gures is a view ot' a section ofthe smoke-pipe and its bonnet-base. Letter B in saine figures is a view of and indications where the ricket-ports should be placed or made. Letter C in Fig. 1 is a view `of the cauntendrai't combustion-chamber.

Letter E in same ligure is a View ot' the concave bottom of an air-tight lire-chamber indicated by the letter D.A Letter F is a view of the draft-hole in iirechamber. Letter G is a View of the check-draft door to the tire-chainber. Letter H is a view of the oil-fuel feedripe- The arrows indicate the flames as extending f1 ozn the tire-chamber to the counter-draft combustion-chamber, where they are met by a current ot' air, (t'urther,) indicated by arrows as passing under the smokepipes bonnet, through the ricket-ports into the counter-draft combustion-chamber to do its work-t. e., burn the unconsunied gas and smoke from the iirechamber. rIhe oil-fuel barrel may be fixed in any place so it be connected with the feed lpipe. The ilow of oil must be regulated at the barrel. When the oil is ignited in the tire-cham ber, the current of air through the draft-hole should, it' possible, be regulated by the checkdraft door thereof, so as to have the atmospheric air pressure through the tire-chambers, draft-hole, and through the counter-draft combustion-chamber ricket-ports equipollent. In a return-flue boiler of, say for instance, ten

The bottom line ot' the first :tlue should be, for instance, nine inches from the Uilm-bottom. The re'chamber should be of the wid th ofthe tlue and form the Lipper line thereof, and

have an area of two thousand six hundred and twenty-six square inches, cubic inches, not square. These should be nine inches in height between the iiue and return-Hue, the end of which must be enlarged to form the counter-draft combustion-chamber. This chamber in such sized and shaped boiler should be eighteen inches high from the bottom line of the return-flue, and have, tor instance, au elliptical lengthwise and acubieal area of nine thousand one hundred and eighty-four cubic inches. There. should be, for instance,'threc ricket-ports of a circular form, each having an area of ten square inches and rest on `the j bottom line of said chamber, and be lined with tem pered clay. The bonnet of the smokepipe for such sized tlues, counter-draft combustionehamber, and ricket-ports should, for

i instance, at the apex of the radius of' the semicircular baseline thereof, stand from the front of the boilers Jface some thirty inches, and be of a conical convex form from the lower line of the ricket-ports to the apex of the boiler, from which the smoke-pipe may be of the usual size and form.

What we claim as our invention, and desire to secure by Letters Patent, is

The counterdraft com bustion-chamber, ricket-ports, or any openin g in the nature thereofas counter-draft air-*holes to such chamberand the bonnetbase smoke-pipe to form a counter draft combustion-chamber, as hereinbet'ore more fully set forth.

WILLIAM BUDD. I. L. HUSBAND. Witnesses:

WM. A. HUSBAND, H.. TUNIJAR. 

